feat: add unit tests for SclAutoAlignmentEventHandler and SclAutoAlignmentEventRequest

Signed-off-by: Nora Blomaard <n.blomaard@gmail.com>

Author: noraeb

app/src/test/java/org/lfenergy/compas/scl/auto/alignment/websocket/v1/event/SclAutoAlignmentEventHandlerTest.java

@@ -0,0 +1,65 @@
+// SPDX-FileCopyrightText: 2026 Alliander N.V.
+// SPDX-License-Identifier: Apache-2.0
+package org.lfenergy.compas.scl.auto.alignment.websocket.v1.event;
+
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.lfenergy.compas.scl.auto.alignment.rest.v1.model.SclAutoAlignRequest;
+import org.lfenergy.compas.scl.auto.alignment.rest.v1.model.SclAutoAlignResponse;
+import org.lfenergy.compas.scl.auto.alignment.service.SclAutoAlignmentService;
+import org.lfenergy.compas.scl.auto.alignment.websocket.v1.event.model.SclAutoAlignmentEventRequest;
+import org.mockito.ArgumentCaptor;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+
+import jakarta.websocket.RemoteEndpoint;
+import jakarta.websocket.Session;
+
+import static org.junit.jupiter.api.Assertions.*;
+import static org.mockito.Mockito.*;
+
+@ExtendWith(MockitoExtension.class)
+class SclAutoAlignmentEventHandlerTest {
+
+	@Mock
+	private SclAutoAlignmentService sclAutoAlignmentService;
+
+	@InjectMocks
+	private SclAutoAlignmentEventHandler handler;
+
+	@Test
+	void mapWebsocketsEvent_WhenCalled_ThenSclAutoAlignResponseReturned() {
+		String who = "test-user";
+		SclAutoAlignRequest alignRequest = mock(SclAutoAlignRequest.class);
+		String sclData = "<SCL>...</SCL>";
+		var substationNames = java.util.Collections.singletonList("substation");
+
+		when(alignRequest.getSclData()).thenReturn(sclData);
+		when(alignRequest.getSubstationNames()).thenReturn(substationNames);
+		when(sclAutoAlignmentService.updateSCL(sclData, substationNames, who)).thenReturn("<SCL>updated</SCL>");
+
+		Session session = mockSession();
+		SclAutoAlignmentEventRequest eventRequest = new SclAutoAlignmentEventRequest(session, alignRequest, who);
+
+		handler.mapWebsocketsEvent(eventRequest);
+
+		SclAutoAlignResponse response = verifyResponse(session, SclAutoAlignResponse.class);
+		assertEquals("<SCL>updated</SCL>", response.getSclData());
+		verify(sclAutoAlignmentService).updateSCL(sclData, substationNames, who);
+	}
+
+	private Session mockSession() {
+		Session session = mock(Session.class);
+		RemoteEndpoint.Async async = mock(RemoteEndpoint.Async.class);
+		when(session.getAsyncRemote()).thenReturn(async);
+		return session;
+	}
+
+	private <T> T verifyResponse(Session session, Class<T> responseClass) {
+		verify(session).getAsyncRemote();
+		ArgumentCaptor<T> captor = ArgumentCaptor.forClass(responseClass);
+		verify(session.getAsyncRemote()).sendObject(captor.capture());
+		return captor.getValue();
+	}
+}

app/src/test/java/org/lfenergy/compas/scl/auto/alignment/websocket/v1/event/model/SclAutoAlignmentEventRequestTest.java

@@ -0,0 +1,33 @@
+package org.lfenergy.compas.scl.auto.alignment.websocket.v1.event.model;
+
+import org.junit.jupiter.api.Test;
+import org.lfenergy.compas.scl.auto.alignment.rest.v1.model.SclAutoAlignRequest;
+
+import jakarta.websocket.Session;
+
+import static org.junit.jupiter.api.Assertions.*;
+import static org.mockito.Mockito.*;
+
+class SclAutoAlignmentEventRequestTest {
+
+	@Test
+	void constructorAndGetters_ShouldReturnValues() {
+		Session session = mock(Session.class);
+		SclAutoAlignRequest request = mock(SclAutoAlignRequest.class);
+		String who = "test-user";
+
+		SclAutoAlignmentEventRequest eventRequest = new SclAutoAlignmentEventRequest(session, request, who);
+
+		assertSame(session, eventRequest.getSession(), "Session should match");
+		assertSame(request, eventRequest.getRequest(), "Request should match");
+		assertEquals(who, eventRequest.getWho(), "Who should match");
+	}
+
+	@Test
+	void constructor_AllowsNullArguments() {
+		SclAutoAlignmentEventRequest eventRequest = new SclAutoAlignmentEventRequest(null, null, null);
+		assertNull(eventRequest.getSession(), "Session should be null");
+		assertNull(eventRequest.getRequest(), "Request should be null");
+		assertNull(eventRequest.getWho(), "Who should be null");
+	}
+}